Bird feeder



FIG. 1 is a side elevation view of a bird feeder showing my new design, all other sides being identical;

FIG. 2 is a top plan view thereof, on an enlarged scale;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a perspective view of FIG. 1, on an enlarged scale.

The broken line showing of the support pole in FIGS. 1 and 4 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a bird feeder, as shown and described. 